Wilwood Bronco New Style rear Dynapro parking-brake kit laid out with black calipers, drilled and slotted rotors, internal parking-shoe assemblies and mounting parts
Wilwood Bronco New Style rear Dynapro parking-brake kit assembly example, showing a black caliper positioned over the drilled and slotted rotor and mounting hat
Wilwood Bronco New Style rear Dynapro parking-brake kit laid out with black calipers, drilled and slotted rotors, internal parking-shoe assemblies and mounting parts
Wilwood Bronco New Style rear Dynapro parking-brake kit assembly example, showing a black caliper positioned over the drilled and slotted rotor and mounting hat

Wilwood Drilled 12.19-Inch Rear Disc and Parking Conversion, Black Dynapro Calipers, Ford Bronco New Style Flange with 2.36-Inch Axle Offset

SKU: 140-13664-D

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Product details

The drilled-and-slotted rotor configuration retains the black Dynapro calipers and internal parking shoes of this Bronco axle kit. Its housing-end mounting and rotor position are specific to the New Style flange with 2.36 inches of axle offset. The manufacturer, Wilwood Engineering, was founded in 1977 by Bill Wood and is based in Camarillo, California. Its design and manufacturing work covers disc brake systems and components, including calipers, rotors, master cylinders, valves, fittings and brake lines. Motorsport, street-performance and specialized installations each require the individual parts to suit the complete brake system.

Technical Details

  • Rotor: 12.19 in; 309.63 mm outside diameter; 0.81 in; 20.57 mm thickness. Material: Iron. Construction: Vented. Friction-face style: SRP Drilled & Slotted.
  • Rotor surface finish: Black Electro Coat.
  • Manufacturer: Wilwood; manufacturer part number: 140-13664-D. Supplied quantity: Sold as a kit.
  • Application category: Rear Brake Kits - Street Performance. Axle/spindle category: Rear Kits. Brake function: Disc; Parking.
  • Separate wheel hubs included: No. Retain only the hub arrangement specified for this kit.
  • Mounting hardware included: Yes. Spindles included: No. Master cylinder included: No. Brake booster included: No.
  • Flexible brake lines included: No. Select the vehicle-end connection and routing separately.
  • Internal parking-shoe assemblies are included. The vehicle cable/clevis connection is separate; parking cable kit 330-9371 is a separately selected option, not included.
  • Wheel interface: 5 x 4.5 in; 5 x 114.3 mm; 5 x 5.5 in; 5 x 139.7 mm. Rotor/hat wheel-stud clearance: 0.56 in; 14.22 mm; 0.64 in; 16.26 mm.
  • Nominal minimum wheel diameter: 15 in; 381 mm. Verify the full wheel-clearance drawing; diameter alone does not establish barrel or spoke clearance.
  • Housing/spindle flange: Big Ford New Style Bronco. Flange/axle offset: 2.36 in; 59.94 mm.
  • Calipers: 4 stainless pistons per caliper; lug mounting; forged aluminium bodies. Color: Black. Finish: Black Powder Coat. Inlet thread: 1/8-27 NPT.
  • Caliper family: Dynapro Lug Mount. Brake-pad compound: BP-10.

Fitment & Compatibility

Measure the housing end and offset using DS1043 and the worksheet. Check the wheel bolt circle and stud clearances on the selected drilled rotor, which lists both 4.50- and 5.50-inch patterns. Provide suitable flexlines and the separate parking-cable connection for the actual vehicle.

Manufacturer Documents

Supply the vehicle details and current brake configuration when contacting PMB Performance for fitment help. Our team brings over 20 years of parts experience to checking the combination.